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MathematicsMathematics
11 May, 19:34

Which of the following expressions is equivalent to 7 (x+3

10+x

7x + 21

7x + 3

3x + 21

+5
Answers (2)
  1. 11 May, 19:35
    0
    By using the distributive property you can find that 7 (x+3) is 7x + 21.
  2. 11 May, 19:49
    0
    7 (x + 3) ... distribute the 7 through the parenthesis ... that means multiply 7 by everything in the parenthesis.

    7 (x + 3) = (7 * x) + (7 * 3) = 7x + 21
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